http://www.chambersharrap.co.uk/chambers/feat...
"astrakhan noun 1 a kind of fur made from the dark tightly-curled wool and skin of very young or stillborn lambs, which is used to line and trim coats, make hats, etc. 2 a cloth made to resemble this fur. "

http://www.oup.com/oald-bin/web_getald7index1a.pl
as•tra•khan /strkn; NAmE strkn/ noun [U] a type of black tightly-curled cloth made from the wool of a particular type of young sheep, used especially for making coats and hats; a type of cloth that is made to look like this

http://www.merriam-webster.com/dictionary/ast...
"Main Entry: as·tra·khan
Pronunciation: \ˈas-trə-kən, -ˌkan\
Function: noun
Usage: often capitalized
Etymology: Astrakhan, Russia
Date: 1766
1 : karakul of Russian origin
2 : a cloth with a usually wool, curled, and looped pile resembling karakul

ibid:
http://www.merriam-webster.com/dictionary/karakul
"Main Entry: kar·a·kul
Pronunciation: \ˈker-ə-kəl, ˈka-rə-\
Function: noun
Etymology: Karakul, village in Uzbekistan
Date: 1853
1often capitalized : any of a breed of hardy fat-tailed sheep of central Asian origin with a narrow body and coarse wiry fur
2: the usually curly glossy black coat of a very young karakul lamb valued as fur — compare broadtail 2 , persian lamb 1"

ibid:
http://www.merriam-webster.com/dictionary/per...
Main Entry: Persian lamb
Function: noun
Date: 1889
1 : a pelt that is obtained from a newborn karakul lamb slightly older than those yielding broadtail and that is characterized by very silky tightly curled glossy fur
2 : the young of the karakul sheep that furnishes skins used in furriery

http://www.dwds.de/?kompakt=1&sh=1&qu=Persianer
Persiạner, der; -s, - 〈EN〉
1. Fell vom Lamm des Karakulschafes
2. Pelz von 1

http://www.focus.de/kultur/leben/von-moden-un...
"...Das mag freilich manch Moralisten und Peta-Aktivisten grämen, die längst zur Jagd auf Hamid Karzais Persianermütze und Papst Benedikts Hermelinstola blasen. "

http://www.guardian.co.uk/world/2008/jul/20/a...
"...In the heady aftermath of the 2001 war, everything seemed possible and Karzai, with his hawk nose, multicoloured Uzbek cape and astrakhan hat, was, like his country, handsome, brave, rugged, exotic and romantically wreathed in gunsmoke."

 Leo hat schon astrakhan (textil.) - Astrachan, der. (was das DWDS übrigens nicht kennt).
Für Persianer hat Leo nichts, für karakul nur das Schaf, nicht das Fell.

Die WB-Einträge sind übrigens ziemlich zimperlich - das "beste" Fell hat man von Lammföten, und es wird nicht unbedingt auf Totgeburten ("stillborn") gewartet (zur Info: http://www.hsus.org/wildlife/wildlife_news/as... )